10 December (27 November O.S.):
- ACHARIUS, a monk at Luxeuil under St. Eustace (29th March). In 621 he was consecrated Bishop of Noyon-Tournai, and was a great supporter of the work of St. Amandus of Maastricht (6th February). He reposed in 640.
- APOLLINARIS, the fourteenth Abbot of Montecassino. In which position he served for eleven years, reposing in 828.
- BILHILD, a native of the Würzburg area, she married the Duke of Thuringia. Following her husband's death she founded the convent of Altenmünster in Mainz. Reposing circa 710.
- FACUNDUS AND PRIMITIVUS, Natives of Léon, Who, circa 300 were beheaded near the River Cea where Sahagun now stands. Later the monastery of Sahagun, around which the present town grew up, was named after St. Facundus.
- FERGUS, An Irish bishop who preached among the Picts in Perthshire, Caithness, Buchan and Forfarshire. Reposing circa 721.
- GALLGO, the sixth century founder of Llanallgo in Anglesey, Wales.
- JOHN ANGELOPTES, bishop of Ravenna from 430 until his repose in 433. The surname Angeloptes means 'the man who saw an angel' in Greek and was given to him because an angel, visible to him alone, came and helped him serve the divine liturgy.
- MAXIMUS OF RIEZ, abbot of Lérins who, in 434, much against his will was consecrated bishop of Riez. He was one of the most prominent bishops in the Church of Gaul at that time. He reposed in 460.
- SEACHNALL (SECHNALL), a disciple of St Patrick, who became the first Bishop of Dunsauglin in Meath, and later served in Armagh. He composed the earliest poem of the Irish Church - an alphabetical hymn in honour of St Patrick; and reposed in 457.
- SEVERINUS, a hermit who lived near Paris and reposed circa 540.
- SIFFRED (SIFFREIN, SYFFROY, SUFFREDUS), born in Albano near Rome, he became a monk at Lérins and was later Bishop of Carpentras. He reposed circa 540.
- VALERIAN, a bishop of Aquileia, who, having succeeded an Arian bishop, spent his energy fighting that heresy, reposing in + 389.
- VIRGILIUS (FERGAL), an Irishman who preached in Bavaria, helping St. Rupert (27th March), the Apostle of Austria. St. Virgilius later served as Abbot of St. Peter's in Salzburg and Bishop. He reposed in 784, and is venerated as the Apostle of Carinthia.
* - Prior to the Schism the Patriarchate of Rome was Orthodox and fully in communion with the Orthodox Church. As Saint John of Shanghai and San Francisco +1966 said "The West was Orthodox for a thousand years, and her venerable Liturgy is far older than any of her heresies."